Hi guys, I asked this question in the hull truth also but I'm posting it here as I would like to find out a good answer. I'm considering on installing a new Garmin unit with chirp technology in my Carolina Classic 28 with twin Volvo duo prop outdrives and I would like to install a transom mount transducer as I don't want to spend a fortune in a thruhull transducer, would this really work?

I used to have this set up in my wellcraft 26 coastal with twin outboards and I don't recall any issue, but I really didn't use them for fishing as I only used them for depth and i want to make sure anyways.